U.S. patent application number 12/668881 was filed with the patent office on 2010-07-29 for multipurpose cover supporter.
Invention is credited to Jeong Woo Park.
Application Number | 20100187804 12/668881 |
Document ID | / |
Family ID | 40228766 |
Filed Date | 2010-07-29 |
United States Patent
Application |
20100187804 |
Kind Code |
A1 |
Park; Jeong Woo |
July 29, 2010 |
MULTIPURPOSE COVER SUPPORTER
Abstract
An eye protective cover capable of supporting multi-purpose
contents is disclosed. The cover includes front and back covers (20
and 30) which are foldably coupled to each other by a main coupling
part (10). Front and back collapsing covers (25 and 35) are
coupled, respectively, to upper surfaces of the front and back
covers (20 and 30) by separation lines (25a and 35a) in such a way
as to overlap the front and back covers (20 and 30). An angle
holding unit is provided between the front or back cover (20 or 30)
and the corresponding front or back collapsing cover (25 or 35) to
hold an angle between the front or back cover (20 or 30) and the
corresponding front or back collapsing cover (25 or 35).
Inventors: |
Park; Jeong Woo;
(Cheonan-si, KR) |
Correspondence
Address: |
CHRISTOPHER PAUL MITCHELL
888 16TH ST., NW, SUITE 800
WASHINGTON
DC
20006
US
|
Family ID: |
40228766 |
Appl. No.: |
12/668881 |
Filed: |
July 11, 2008 |
PCT Filed: |
July 11, 2008 |
PCT NO: |
PCT/KR08/04113 |
371 Date: |
January 12, 2010 |
Current U.S.
Class: |
281/45 |
Current CPC
Class: |
B42D 3/16 20130101; B42D
3/126 20130101; B42F 13/402 20130101 |
Class at
Publication: |
281/45 |
International
Class: |
B42D 17/00 20060101
B42D017/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 12, 2007 |
KR |
10-2007-0069944 |
Sep 19, 2007 |
KR |
10-2007-0095042 |
Jan 14, 2008 |
KR |
10-2008-0003903 |
Jul 7, 2008 |
KR |
10-2008-0065329 |
Claims
1. An eye protective cover capable of supporting multi-purpose
contents, comprising: front and back covers (20 and 30) foldably
coupled to each other by a main coupling part (10); front and back
collapsing covers (25 and 35) coupled, respectively, to upper
surfaces of the front and back covers (20 and 30) by separation
lines (25a and 35a) in such a way as to overlap the front and back
covers (20 and 30); and an angle holding unit provided between the
front or back cover (20 or 30) and the corresponding front or back
collapsing cover (25 or 35) to hold an angle between the front or
back cover (20 or 30) and the corresponding front or back
collapsing cover (25 or 35).
2. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the angle holding unit (140)
comprises a sheet member which connects a whole portion of an edge
of the front or back cover (20 or 30) to a whole portion of an edge
of the corresponding front or back collapsing cover (25 or 35), and
has at a center thereof a folding line such that the sheet member
is folded along the folding line.
3. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein a front or back cover groove
(21 or 31) is formed in the corresponding front or back cover (20
or 30), and the front collapsing cover (25') is a member which is
connected to an upper edge of the front cover groove (21) via a
separation line (25a') and is fitted into the front cover groove
(21), and the back collapsing cover (35') is a member which is
connected to an upper edge of the back cover groove (31) via a
separation line (35a') and is fitted into the back cover groove
(31), and the angle holding unit (240) is a band member which is
installed between the front or back cover groove (21 or 31) and the
corresponding front or back collapsing cover (25' or 35').
4. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the angle holding unit (340)
comprises: a band member (340a) connected to the front or back
collapsing cover (25 or 35) and supported at a lower portion of the
front or back cover (20 or 30); first detachable attaching parts
(340b) provided on an upper portion of the front or back cover (20
or 30) at regular intervals; and a second detachable attaching part
(340c) installed at the band member (340a) to be detachably
attached to an associated first detachable attaching part
(340b).
5. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the angle holding unit (440)
is a member which is foldably connected to a lower edge of the
front or back cover (20 or 30) and includes a plurality of fitting
grooves (440a) such that an edge of the front or back collapsing
cover (25 or 35) is fitted into an associated fitting groove.
6. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein a plurality of protrusion
fitting holes (23a or 33a) is formed in a back surface of the front
or back cover (20 or 30); and the angle holding unit (540) is a
member which is foldably connected to the lower edge of the front
or back cover (20 or 30) and has a plurality of support protrusions
(540a) such that an edge of the front or back collapsing cover (25
or 35) is supported by an associated fitting protrusion, or the
support protrusions are fitted into the corresponding protrusion
fitting holes (23a or 33a) of the front or back cover.
7. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the angle holding unit (640)
comprises a plate member (640a) foldably connected to the lower
edge of the front or back cover (20 or 30), with first magnetic
detachable attaching part (640b) being embedded in the plate member
and arranged at predetermined intervals; and a second magnetic
detachable attaching part (640c) embedded in an end of the front or
back collapsing cover (25 or 35) to be detachably attached to an
associated first magnetic detachable attaching part (640b).
8. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the angle holding unit (740)
comprises: a body (745) foldably connected to the lower edge of the
front or back cover (20 or 30), with a guide groove (745a) being
provided in the body and a plurality of first support protrusions
(745b) being provided on an upper surface of the body so that the
edge of the front or back collapsing cover (25 or 35) is supported
by an associated first support protrusion, and a slider (746)
sliding along the guide groove (745a), and having on an upper
surface thereof a plurality of second support protrusions (746b) so
that the edge of the front or back collapsing cover (25 or 35) is
supported by an associated second support protrusion.
9. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the angle holding unit (840)
comprises: a body (845) foldably connected to the lower edge of the
front or back cover (20 or 30), with a guide groove (845a) provided
in the body and a plurality of first support protrusions (845b)
provided on an upper surface of the body so that the edge of the
front or back collapsing cover (25 or 35) is supported by an
associated first support protrusion, and a rotary bar (846)
rotatably installed at an edge of the guide groove (845a) such that
the rotary bar is retracted into or extended from the guide groove
(845a), with a plurality of second support protrusions (846b)
provided on an upper surface of the rotary bar to support the edge
of the front or back collapsing cover (25 or 35).
10. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the angle holding unit (940)
comprises: a guide pipe (945) provided vertically in the front or
back cover (20 or 30), with a removal prevention step (945a)
provided in an end of the guide pipe, and a slider (946) sliding in
the guide pipe (945) and having a removal prevention projection
(946a) which is locked by the removal prevention step (945a), with
a plurality of support protrusions (946b) formed on an upper
surface of the slider to support the edge of the front or back
collapsing cover (25 or 35).
11. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the angle holding unit
(1040) is foldably connected to the lower edge of the front or back
cover (20 or 30), and comprises a member having a plurality of
locking protrusions (1040a) which are fitted into a perforation
hole (25c or 35c) formed in the front or back collapsing cover (25
or 35).
12. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the main coupling part (10')
comprises a plurality of rings for coupling the front cover (20)
with the back cover (30); and the front collapsing cover (25') and
the back collapsing cover (35') are separated from each other and
overlap with the front and back covers provided on both sides of
the main coupling part (10') so as to prevent interference between
the front collapsing cover or the back collapsing cover and the
main coupling part (10') comprising the plurality of rings.
13. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the main coupling part
(10'') comprises a spring which binds the front cover (20) with the
back cover (30); and a subsidiary coupling band (15') is provided
on upper or lower ends of the front collapsing cover (25) and the
back collapsing cover (35) to couple the front and back collapsing
covers with each other.
14. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the main coupling part
(10'') comprises a spring which binds the front cover (20) with the
back cover (30); and a hole (15a) is formed in the subsidiary
coupling part (15) for coupling the front collapsing cover (25)
with the back collapsing cover (35) so that part of the spring,
which is the main coupling part, is fitted into the hole.
15. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein the front collapsing cover
(25'') fits inside the front cover (20), and the back collapsing
cover (35'') fits inside the back cover (30).
16. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, further comprising: a detachable
support unit (60) mounted on the main coupling part (10) or the
front or back cover (20 or 30), functioning to detachably support a
page unit on which various pieces of information are printed or on
which a memo may be taken.
17. The eye protective cover capable of supporting multi-purpose
contents according to claim 1, wherein detachable attaching parts
(26a and 26b) are provided on corners of the front cover (20) and
the front collapsing cover (25) to maintain an overlapping state of
the front collapsing cover (25) with the front cover (20); and
detachable attaching parts (36a and 36b) are provided on corners of
the back cover (30) and the back collapsing cover (35) to maintain
an overlapping state of the back collapsing cover (35) with the
back cover (30).
18. An eye protective cover capable of supporting multi-purpose
contents, comprising: front and back covers (120 and 130) foldably
coupled to each other by a main coupling part (110); a front
collapsing cover (125) connected to an upper portion of the front
cover (120) via a separation line (125a), thus overlapping the
front cover (120); a back collapsing cover (135) connected to an
upper portion of the back cover (130) via a separation line (135a),
thus overlapping the back cover (130); a subsidiary coupling part
(115) coupling the front collapsing cover (125) with the back
collapsing cover (135); and an angle holding unit connected between
the subsidiary coupling part (115) and the main coupling part
(110), thus maintaining an angle between the front cover (20) and
the front collapsing cover (125), and an angle between the back
cover (130) and the back collapsing cover (135).
19. The eye protective cover capable of supporting multi-purpose
contents according to claim 18, wherein the angle holding unit
(1340) is a member which is foldably connected to a lower edge of
the main coupling part (110) and has a plurality of fitting grooves
(1340a) so that an edge of the subsidiary coupling part (115) is
fitted into an associated fitting groove.
20. The eye protective cover capable of supporting multi-purpose
contents according to claim 18, wherein the angle holding unit
(1440) comprises: a plurality of first detachable attaching parts
(1441) provided on the subsidiary coupling part (115) at
predetermined intervals, a band member (1442) connected to the main
coupling part (110) in such a way as to pass through a lower
portion of the subsidiary coupling part (115), and a second
detachable attaching part (1443) installed at an end of the band
member (1442) to be attached to an associated first detachable
attaching part (1441).
21. The eye protective cover capable of supporting multi-purpose
contents according to claim 18, further comprising: a detachable
support unit (160) mounted on any one of the main coupling part
(110) and the front and back covers (120 and 130), and functioning
to detachably support a page unit on which various pieces of
information are printed or on which a memo may be taken.
22. The eye protective cover capable of supporting multi-purpose
contents according to claim 18, wherein detachable attaching parts
(126a and 126b) are provided on corners of the front cover (120)
and the front collapsing cover (125) to maintain an overlapping
state of the front collapsing cover (125) with the front cover
(120); and detachable attaching parts (136a and 136b) are provided
on corners of the back cover (130) and the back collapsing cover
(135) to maintain an overlapping state of the back collapsing cover
(135) with the back cover (130).
Description
TECHNICAL FIELD
[0001] The present invention relates, in general, to an eye
protective cover, which is applicable to various types of products
and, more particularly, to a cover capable of supporting
multi-purpose contents, which has improved portability and
utility.
BACKGROUND ART
[0002] A product, including pages containing written matter and
covers enclosing the pages on both sides, for example, a book, a
notebook, a memo pad, an album, a picture book, a business-card
arranger, a diary, a calendar, a catalogue of an insurance company
or bank, and an electronic note, must be placed on a table in order
to use or write on the pages on which written contents are printed.
In this state, a user pulls his or her body forward and bows his or
her head.
[0003] However, the posture of pulling the body towards the table
and bowing one's head is a burden on the user's waist and eyes.
Thus, when the posture is repeated for a lengthy period of time, a
spinal disease, amblyopia, empyema, and the lowering of learning
efficiency may ensue.
DISCLOSURE OF INVENTION
Technical Problem
[0004] Accordingly, the present invention has been made keeping in
mind the above problems occurring in the prior art, and an object
of the present invention is to provide an eye protective cover
capable of supporting multi-purpose contents, which can be used
without bending the waist or head, thus maximizing convenient use
thereof, in addition to improving its portability.
Technical Solution
[0005] In order to accomplish the above object, according to one
embodiment of the invention, the present invention provides an eye
protective cover capable of supporting multi-purpose contents,
including front and back covers 20 and 30 foldably coupled to each
other by a main coupling part 10; front and back collapsing covers
25 and 35 coupled, respectively, to upper surfaces of the front and
back covers 20 and 30 by separation lines 25a and 35a in such a way
as to overlap the front and back covers 20 and 30; and an angle
holding unit provided between the front or back cover 20 or 30 and
the corresponding front or back collapsing cover 25 or 35 to hold
an angle between the front or back cover 20 or 30 and the
corresponding front or back collapsing cover 25 or 35.
[0006] Further, in order to accomplish the above object, according
to another embodiment of the invention, the present invention
provides an eye protective cover capable of supporting
multi-purpose contents, including front and back covers 120 and 130
foldably coupled to each other by a main coupling part 110; a front
collapsing cover 125 connected to an upper portion of the front
cover 120 via a separation line 125a, thus overlapping the front
cover 120; a back collapsing cover 135 connected to an upper
portion of the back cover 130 via a separation line 135a, thus
overlapping the back cover 130; a subsidiary coupling part 115
coupling the front collapsing cover 125 with the back collapsing
cover 135; and an angle holding unit connected between the
subsidiary coupling part 115 and the main coupling part 110, thus
maintaining an angle between the front cover 20 and the front
collapsing cover 125, and an angle between the back cover 130 and
the back collapsing cover 135.
[0007] The above and other features and advantages of the present
invention will be more clearly understood from the following
detailed description taken in conjunction with the accompanying
drawings. Here, the terminologies or words used in the description
and the claims of the present invention should not be interpreted
as being limited merely to common and dictionary meanings, but
should be interpreted based on the meanings and concepts of the
invention in keeping with the scope of the invention on the basis
of the principle that the inventor can appropriately define the
terms in order to describe the invention in the best way.
ADVANTAGEOUS EFFECTS
[0008] An eye protective cover capable of supporting multi-purpose
contents according to the present invention is advantageous in that
the cover includes a front collapsing cover coupled to the upper
surface of a front cover via a separation line, a back collapsing
cover coupled to the upper surface of a back cover via a separation
line, and an angle holding unit for holding an angle between the
front or back cover and the front or back collapsing cover, thus
allowing the cover to be closed and carried like a general book,
and allowing the cover to be erected and used like a reading desk.
Thus, a user can see written matter of a page unit without the
necessity of bending the waist or head. Further, the cover allows
the page unit to be easily replaced with another one, thus
affording improved utility.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a perspective view illustrating an eye protective
cover capable of supporting multi-purpose contents according to a
first embodiment of the present invention,
[0010] FIG. 2 is a view illustrating a first embodiment of an angle
holding unit for holding an angle between a front or back cover and
a corresponding front or back collapsing cover in the eye
protective cover of FIG. 1,
[0011] FIG. 3 is a side view illustrating the eye protective cover
capable of supporting multi-purpose contents of FIG. 2,
[0012] FIG. 4 is a view illustrating a second embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1,
[0013] FIG. 5 is a view illustrating a third embodiment of an angle
holding unit for holding an angle between the front or back cover
and the corresponding front or back collapsing cover in the eye
protective cover of FIG. 1,
[0014] FIGS. 6 and 7 are views illustrating a fourth embodiment of
an angle holding unit for holding an angle between the front or
back cover and the corresponding front or back collapsing cover in
the eye protective cover of FIG. 1,
[0015] FIG. 8 is a view illustrating a fifth embodiment of an angle
holding unit for holding an angle between the front or back cover
and the corresponding front or back collapsing cover in the eye
protective cover of FIG. 1,
[0016] FIGS. 9 and 10 are views illustrating a sixth embodiment of
an angle holding unit for holding an angle between the front or
back cover and the corresponding front or back collapsing cover in
the eye protective cover of FIG. 1,
[0017] FIG. 11 is a view illustrating a seventh embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1,
[0018] FIG. 12 is a view illustrating an eighth embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1,
[0019] FIG. 13 is a view illustrating a ninth embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1,
[0020] FIG. 14 is a view illustrating a tenth embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1,
[0021] FIG. 15 is a detailed view illustrating the angle holding
unit of FIG. 14,
[0022] FIG. 16 is a view illustrating an eleventh embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1,
[0023] FIG. 17 is a view illustrating a main coupling part of the
eye protective cover of FIG. 1, in which the main coupling part
comprises a plurality of rings,
[0024] FIG. 18 is a view illustrating the state in which the eye
protective of FIG. 17 is closed like a book,
[0025] FIG. 19 is a view illustrating the front collapsing cover
and the back collapsing cover which are separated from each
other,
[0026] FIG. 20 is a view illustrating a subsidiary coupling part
provided on each of the upper and lower ends of the front and back
collapsing covers,
[0027] FIG. 21 is a view illustrating holes formed in a subsidiary
coupling part,
[0028] FIGS. 22 and 23 are views illustrating the front and back
collapsing covers fitting inside the corresponding front and back
covers,
[0029] FIG. 24 is a perspective view illustrating an eye protective
cover capable of supporting multi-purpose contents according to a
second embodiment of the present invention, in which the eye
protective cover has an angle holding unit of a first
embodiment,
[0030] FIG. 25 is a view illustrating an angle holding unit of a
second embodiment in the eye protective cover of FIG. 23, and
[0031] FIG. 26 is a view illustrating an angle holding unit of a
third embodiment in the eye protective cover of FIG. 24.
DESCRIPTION OF REFERENCE CHARACTERS OF IMPORTANT PARTS
[0032] 10 . . . main coupling part 15 . . . subsidiary coupling
part [0033] 15' . . . subsidiary coupling band 20 . . . front cover
[0034] 25 . . . front collapsing cover [0035] 25'' . . . front
collapsing cover [0036] 30 . . . back cover 35 . . . back
collapsing cover [0037] 35'' . . . back collapsing cover [0038] 40
. . . first embodiment of angle holding unit [0039] 140 . . .
second embodiment of angle holding unit [0040] 240 . . . third
embodiment of angle holding unit [0041] 340 . . . fourth embodiment
of angle holding unit [0042] 440 . . . fifth embodiment of angle
holding unit [0043] 540 . . . sixth embodiment of angle holding
unit [0044] 640 . . . seventh embodiment of angle holding unit
[0045] 740 . . . eighth embodiment of angle holding unit [0046] 840
. . . ninth embodiment of angle holding unit [0047] 940 . . . tenth
embodiment of angle holding unit [0048] 1040 . . . eleventh
embodiment of angle holding unit [0049] 110 . . . main coupling
part [0050] 115 . . . subsidiary coupling part 120 . . . front
cover [0051] 125 . . . front collapsing cover 130 . . . back cover
[0052] 135 . . . back collapsing cover [0053] 1240 . . . first
embodiment of angle holding unit [0054] 1340 . . . second
embodiment of angle holding unit [0055] 1440 . . . third embodiment
of angle holding unit [0056] 210 . . . main coupling part 220 . . .
front cover [0057] 225 . . . front collapsing cover 230 . . . back
cover [0058] 235 . . . back collapsing cover
MODE FOR THE INVENTION
[0059] The above and other objects, features and advantages of the
present invention will be more clearly understood from the
following detailed description.
[0060] Hereinafter, an eye protective cover capable of supporting
multi-purpose contents according to the present invention will be
described with reference to the accompanying drawings.
[0061] Reference now should be made to the drawings, in which the
same reference numerals are used throughout the different drawings
to designate the same or similar components. For the clarity of
description, known functions and constructions relating to the
present invention will be omitted herein.
[0062] FIG. 1 is a perspective view illustrating an eye protective
cover capable of supporting multi-purpose contents according to a
first embodiment of the present invention, FIG. 2 is a view
illustrating a first embodiment of an angle holding unit for
holding an angle between a front or back cover and a corresponding
front or back collapsing cover in the eye protective cover of FIG.
1, FIG. 3 is a side view illustrating the eye protective cover
capable of supporting multi-purpose contents of FIG. 2.
[0063] As shown in the drawings, an eye protective cover capable of
supporting multi-purpose contents according to the first embodiment
of the present invention includes front and back covers 20 and 30
which are foldably coupled to each other by a main coupling part
10. Front and back collapsing covers 25 and 35 are coupled,
respectively, to the upper surfaces of the front and back covers 20
and 30 by corresponding separation lines 25a and 35a, in such a way
as to overlap the front and back covers 20 and 30. Angle holding
units 40 are provided between the front cover 20 and the front
collapsing cover 25 and between the back cover 30 and the back
collapsing cover 35 to hold an angle between the front cover 20 and
the front collapsing cover 25 and an angle between the back cover
30 and the back collapsing cover 35.
[0064] As shown in FIG. 3, a detachable support unit 60 is provided
on any one of the main coupling part 10 and the front and back
covers 20 and 30, and functions to detachably support a page unit
(not shown) on which various pieces of information may be printed
or on which a memo may be taken.
[0065] As shown in the drawings, the separation line 25a which
couples the front collapsing cover 25 to the front cover 20 is
formed on the upper portion of the front cover 20, and the
separation line 35a which couples the back collapsing cover 35 to
the back cover 30 is formed on the upper portion of the back cover
30. Of course, the separation lines 25a and 35a may be formed,
respectively, on the uppermost end of the front cover 20 and the
uppermost end of the back cover 30.
[0066] The main coupling part 10 is connected at opposite side
edges thereof to the front cover 20 and the back cover 30 via
separation lines 10a.
[0067] The front cover 20 has a stepped surface 20a which is
thinner than the front cover, and the back cover 30 has a stepped
surface 30a which is thinner than the back cover.
[0068] The front collapsing cover 25 fits inside the stepped
surface 20a, and is connected to the front cover 20 via the
separation line 25a. Here, the thickness of the front collapsing
cover 25 is determined such that the total thickness of the
overlapping stepped surface 20a and front collapsing cover 25, when
the front collapsing cover fits inside the stepped surface 20a, is
the same as the thickness of the front cover 20.
[0069] The back collapsing cover 35 fits inside the stepped surface
30a, and is connected to the back cover 30 via the separation line
35a. Here, the thickness of the back collapsing cover 35 is
determined such that the total thickness of the overlapping stepped
surface 30a and back collapsing cover 35, when the back collapsing
cover fits inside the stepped surface 30a, is the same as the
thickness of the back cover 30.
[0070] Here, the front collapsing cover 25 and the back collapsing
cover 35 are coupled to a subsidiary coupling part 15 via
separation lines 25b and 35b.
[0071] Detachable attaching parts 26a and 26b are provided on the
corners of the front cover 20 and the front collapsing cover 25 to
maintain the overlapping state of the front collapsing cover 25
with the front cover 20. Further, detachable attaching parts 36a
and 36b are provided on the corners of the back cover 30 and the
back collapsing cover 35 to maintain the overlapping state of the
back collapsing cover 35 with the back cover 30. The detachable
attaching parts 26a and 26b or 36a and 36b may comprise Velcro
fasteners so that they are detachably attached to each other, or
comprise a magnet and a steel piece which are detachably attached
to each other using magnetic force, or comprise magnets which are
arranged such that opposite poles face each other, non-magnetic
buttons, etc.
[0072] The front cover 20 and the back cover 30 are manufactured
through injection molding using polypropylene (so-called PP), which
is relatively strong and cheap, or are made of acryl, paper like a
hard board, plastics, aluminum, wood, etc, because each of the
front and back covers requires predetermined strength so as to be
erected on a table. Further, in order to provide a luxury effect,
the front and back covers 20 and 30 may be covered with natural
leather, synthetic leather, or cloth, and corners of each of the
front and back covers may be rounded.
[0073] In order to erect the eye protective cover capable of
supporting multi-purpose contents according to the present
invention, angle holding units are provided between the front cover
20 and the front collapsing cover 25 and the back cover 30 and the
back collapsing cover 35 to hold angles therebetween. The angle
holding units may be embodied in various shapes, which will be
described below in detail.
[0074] As shown in FIGS. 2 and 3, angle holding units 40 and 50
according to the first embodiment comprise band members which are
connected between the front cover 20 and the front collapsing cover
25 and between the back cover 30 and the back collapsing cover
35.
[0075] FIG. 4 is a view illustrating a second embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1.
[0076] As shown in the drawing, angle holding units 140 according
to the second embodiment connect the whole portion of an edge of
the front cover 20 to the whole portion of an edge of the front
collapsing cover 25, and connect the whole portion of an edge of
the back cover 30 to the whole portion of an edge of the back
collapsing cover 35. Each angle holding unit may comprise a sheet
member which has a folding line along the center of the sheet
member so that it is foldable.
[0077] FIG. 5 is a view illustrating a third embodiment of an angle
holding unit for holding an angle between the front or back cover
and the corresponding front or back collapsing cover in the eye
protective cover of FIG. 1.
[0078] As shown in the drawing, front and back cover grooves 21 and
31 are formed in the corresponding front and back covers 20 and 30.
A front collapsing cover 25' is a member which is connected to the
upper edge of the front cover groove 21 via a separation line 25a'
and is fitted into the front cover groove 21. A back collapsing
cover 35' is a member which is connected to the upper edge of the
back cover groove 31 via a separation line 35a' and is fitted into
the back cover groove 31. Here, the angle holding units 240
according to the third embodiment are band members which are
provided between the front cover groove 21 and the front collapsing
cover 25' and between the back cover groove 31 and the back
collapsing cover 35'.
[0079] FIGS. 6 and 7 are views illustrating a fourth embodiment of
an angle holding unit for holding an angle between the front or
back cover and the corresponding front or back collapsing cover in
the eye protective cover of FIG. 1.
[0080] As shown in the drawings, an angle holding unit 340
according to the fourth embodiment includes a band member 340a,
first detachable attaching parts 340b, and a second detachable
attaching part 340c. The band member is connected to each of the
front and back collapsing covers 25 and 35 and is supported at the
lower portion of each of the front and back covers 20 and 30. The
first detachable attaching parts are provided on the upper portion
of each of the front and back covers 20 and 30 at regular
intervals. The second detachable attaching part is installed at the
band member 340a to be detachably attached to an associated first
detachable attaching part 340b.
[0081] The band member 350a has the shape of a band, and is made of
cloth, plastics, polymer resin, leather, paper, etc. Further, the
first and second detachable attaching parts 350b and 350c may
comprise Velcro fasteners so that they are detachably attached to
each other, or comprise a magnet and a steel piece which are
detachably attached to each other using magnetic force, or comprise
magnets which are arranged such that opposite poles face each
other, non-magnetic buttons, etc.
[0082] Here, the band member 340a or 350a may pass through a
through hole (not shown) formed in the lower portion of the front
or back cover 20 or 30, or may be held on the lower or side end of
the front or back cover 20 or 30.
[0083] FIG. 8 is a view illustrating a fifth embodiment of an angle
holding unit for holding an angle between the front or back cover
and the corresponding front or back collapsing cover in the eye
protective cover of FIG. 1.
[0084] As shown in the drawing, angle holding units 440 according
to the fifth embodiment are foldably coupled to the lower edges of
the front and back covers 20 and 30, respectively. Each angle
holding unit includes a plurality of fitting grooves 440a such that
an edge of each of the front and back collapsing covers 25 and 35
is fitted into an associated fitting groove. Preferably,
angle-holding-unit insertion grooves 22 and 32 are provided,
respectively, in the front cover 20 and the back cover 30 so that
each angle holding unit 440 is fitted into the corresponding
angle-holding-unit insertion groove. Meanwhile, in the drawing,
each angle holding unit 440 is positioned between the front cover
20 and the front collapsing cover 25 or between the back cover 30
and the back collapsing cover 35. However, when each angle holding
unit is not in use, the angle holding unit may overlap a surface of
the front or back cover 20 or 30.
[0085] In such a construction, the erection angle of the eye
protective cover capable of supporting multi-purpose contents is
changed according to the position of a specific fitting groove 440a
into which an edge of the front or back collapsing cover 25 or 35
is fitted.
[0086] FIGS. 9 and 10 are views illustrating a sixth embodiment of
an angle holding unit for holding an angle between the front or
back cover and the corresponding front or back collapsing cover in
the eye protective cover of FIG. 1.
[0087] As shown in the drawings, angle holding units 540 according
to the sixth embodiment are foldably coupled to the lower edges of
the front and back covers 20 and 30, respectively. Each angle
holding unit includes a plurality of support protrusions 540a for
supporting an edge of the front or back collapsing cover 25 or 35.
Here, an angle-holding-unit insertion groove is formed in each of
the front and back covers 20 or formed in each of the front and
back collapsing covers 25 and 35 so that the angle holding unit 540
is inserted into the angle-holding-unit insertion groove.
Protrusion fitting holes may be formed in the angle-holding-unit
insertion groove so that support protrusions 540a are fitted into
the corresponding protrusion fitting holes. According to this
embodiment, the angle-holding-unit insertion grooves 23 and 33 are
formed, respectively, in the back surfaces of the front and back
covers 20 and 30, and the protrusion fitting holes 23a and 33a are
formed in the corresponding angle-holding-unit insertion grooves 23
and 33.
[0088] Each angle holding unit 540 has a rectangular shape, and may
be formed using wires such that the support protrusions 540a are
provided on the angle holding unit. Further, as shown in FIG. 11,
an angle holding unit 540 may be produced by separately
manufacturing the rectangular plate 541 and support protrusions
540a' and thereafter attaching the support protrusions to the plate
through welding. Of course, each angle holding unit 540 may be
manufactured such that grooves may be formed in the plate 541, and
thereby an edge of the front or back collapsing cover 25 or 35 is
fitted into the associated groove. Meanwhile, as shown in the
drawing, each angle holding unit 540 is positioned between the
front cover 20 and the front collapsing cover 25 or between the
back cover 30 and the back collapsing cover 35. However, when each
angle holding unit is not in use, the angle holding unit may
overlap a surface of the front or back cover 20 or 30.
[0089] In such a construction, the erection angle of the eye
protective cover capable of supporting multi-purpose contents is
changed according to the position of a specific fitting groove 540a
or 540a' into which an edge of the front or back collapsing cover
25 or 35 is fitted.
[0090] FIG. 11 is a view illustrating a seventh embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1.
[0091] As shown in the drawing, an angle holding unit 640 according
to the seventh embodiment includes a plate member 640a and a second
magnetic detachable attaching part 640c. The plate member is
foldably connected to the lower edge of the front or back cover 20
or 30, and first magnetic detachable attaching parts 640b are
embedded in the plate member in such a way as to be arranged at
predetermined intervals. The second magnetic detachable attaching
part is embedded in an end of each of the front and back collapsing
covers 25 and 35 to be detachably attached to an associated first
magnetic detachable attaching part 640b. Here, an
angle-holding-unit insertion groove 23 or 33 is formed in the front
or back cover 20 or 30 so that each angle holding unit 640 is
inserted into the angle-holding-unit insertion groove. Of course,
the plate member 640a having the second magnetic detachable
attaching part 640c may be protruded or recessed. Meanwhile, as
shown in the drawing, the angle holding unit 640 is positioned
between the front cover 20 and the front collapsing cover 25 or
between the back cover 30 and the back collapsing cover 35.
However, when each angle holding unit is not in use, the angle
holding unit may overlap each of the front and back covers 20 and
30.
[0092] In such a construction, the erection angle of the eye
protective cover capable of supporting multi-purpose contents is
changed according to the position of the first magnetic detachable
attaching part 640b to which the second magnetic detachable
attaching part 640c is attached.
[0093] FIG. 12 is a view illustrating an eighth embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1.
[0094] As shown in the drawing, an angle holding unit 740 according
to the eighth embodiment includes a body 745 and a slider 746. The
body is foldably connected to the lower edge of each of the front
and back covers 20 and 30. A guide groove 745a is provided in the
body, and a plurality of first support protrusions 745b is provided
on the upper surface of the body such that the edge of each of the
front and back collapsing covers 25 and 35 is supported by an
associated first support protrusion. The slider slides along the
guide groove 745a, and has on the upper surface thereof a plurality
of second support protrusions 746b such that the edge of each of
the front and back collapsing covers 25 and 35 is supported by an
associated second support protrusion. In such a construction, the
slider 746 slides from an edge of the body 745 to each of the front
and back collapsing covers 25 and 35. In this state, an edge of
each of the front and back collapsing covers 25 and 35 is supported
by an associated first or second support protrusion 745b or 746b.
According to the position of the first or second support protrusion
745b or 746b to which the edge of each of the front and back
collapsing covers is supported, the erection angle of the eye
protective cover capable of supporting multi-purpose contents is
changed. Meanwhile, as shown in the drawing, the angle holding unit
740 is positioned between the front cover 20 and the front
collapsing cover 25 or between the back cover 30 and the back
collapsing cover 35. However, when each angle holding unit is not
in use, the angle holding unit may be superposed on each of the
front and back covers 20 and 30.
[0095] FIG. 13 is a view illustrating a ninth embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1.
[0096] As shown in the drawing, an angle holding unit 840 according
to the ninth embodiment includes a body 845 and a rotary bar 846.
The body is foldably connected to the lower edge of each of the
front and back covers 20 and 30. A guide groove 845a is provided in
the body, and a plurality of first support protrusions 845b is
provided on the upper surface of the body so that the edge of each
of the front and back collapsing covers 25 and 35 is supported by
an associated first support protrusion. The rotary bar is rotatably
installed at an edge of the guide groove 845a such that the rotary
bar is retracted into or extended from the guide groove 845a. A
plurality of second support protrusions 846b is provided on the
upper surface of the rotary bar to support the edge of each of the
front and back collapsing covers 25 and 35. In such a construction,
the rotary bar 846 rotates in a direction from an edge of the body
845 to each of the front and back collapsing covers 25 and 35. In
this state, an edge of each of the front and back collapsing covers
25 and 35 is supported by an associated first or second support
protrusion 845b or 846b. According to the position of the first or
second support protrusion 845b or 846b to which the edge of each of
the front and back collapsing covers is supported, the erection
angle of the eye protective cover capable of supporting
multi-purpose contents is changed.
[0097] FIG. 14 is a view illustrating a tenth embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1, and FIG. 15 is a detailed view
illustrating the angle holding unit of FIG. 14.
[0098] As shown in the drawings, an angle holding unit 940
according to the tenth embodiment includes a guide pipe 945 and a
slider 946. The guide pipe is provided vertically in each of the
front and back covers 20 and 30. A removal prevention step 945a is
provided in an end of the guide pipe. The slider slides in the
guide pipe 945, and has a removal prevention projection 946a which
is locked by the removal prevention step 945a. A plurality of
support protrusions 946b is formed on the upper surface of the
slider to support an edge of each of the front and back collapsing
covers 25 and 35. In such a construction, after the slider 956
protrudes out from the guide pipe 945, the removal prevention
projection 946a is stopped by the removal prevention step 945a. In
this state, the slider rotates to each of the front and back
collapsing covers 25 and 35. An end of each of the front and back
collapsing covers 25 and 35 is supported by an associated support
protrusion 946b. Here, according to the position of the support
protrusion 946b to which each of the front and back collapsing
covers is supported, the erection angle of the eye protective cover
capable of supporting multi-purpose contents is changed.
[0099] FIG. 16 is a view illustrating an eleventh embodiment of an
angle holding unit for holding an angle between the front or back
cover and the corresponding front or back collapsing cover in the
eye protective cover of FIG. 1.
[0100] As shown in the drawing, an angle holding unit 1040
according to the eleventh embodiment is foldably connected to the
lower edge of each of the front and back covers 20 and 30, and is a
member having a plurality of locking protrusions 1040a which are
fitted into a perforation hole 25c or 35c formed in the
corresponding front or back collapsing cover 25 or 35. Of course,
the locking protrusions 1040a and the perforation hole 25c and 35c
may have various shapes. In such a construction, according to the
position of an associated locking protrusion 1040a fitted into the
perforation hole 25c or 35c, the erection angle of the eye
protective cover capable of supporting multi-purpose contents is
changed.
[0101] As described above, various types of angle holding units may
be possible. Further, the angle holding unit may have various
length locking or extending structures.
[0102] FIG. 17 is a view illustrating a main coupling part of the
eye protective cover of FIG. 1, in which the main coupling part
comprises a plurality of rings, FIG. 17 is a view illustrating the
state in which the eye protective of FIG. 16 is closed like a book,
and FIG. 18 is a view illustrating the front collapsing cover and
the back collapsing cover which are separated from each other.
[0103] The main coupling part 10, described with reference to FIGS.
1 to 16, is directly connected to the side edges of the front and
back covers 20 and 30. However, as shown in FIG. 17, a main
coupling part 10' may comprise a plurality of rings which couples
the front cover 20 with the back cover 30. In this case, front and
back collapsing covers 25' and 35' are separated from each other so
as to prevent the interference of the front and back collapsing
covers with the main coupling part 10' comprising the rings. The
front and back collapsing covers 25' and 35' are overlapped,
respectively, with the front and back covers provided on both sides
of the main coupling part 10'.
[0104] Meanwhile, as shown in FIG. 17, the lower end of the front
collapsing cover 25' and the lower end of the back collapsing cover
35' may be coupled to each other via a convex coupling band 15'.
Moreover, the front cover 10 and the back cover 20 may be also
coupled to each other via a coupling bond (not shown). In this
case, the coupling bond may completely or partially couple the
front and back covers 10 and 20 with each other.
[0105] In this construction, as shown in FIG. 18, when the front
and back collapsing covers 25' and 35' are superposed on the front
and back covers 20 and 30, the eye protective cover capable of
supporting multi-purpose contents according to the present
invention forms the shape of a book.
[0106] Meanwhile, as shown in FIG. 19, the coupling band 15' of
FIGS. 17 and 18 may not be provided between the front collapsing
cover 25' and the back collapsing cover 35'. In this case, the
erection angles of the front and back collapsing covers 25' and 35'
can be independently controlled using the corresponding angle
holding units.
[0107] FIG. 20 is a view illustrating a subsidiary coupling part
provided on each of the upper and lower ends of the front and back
collapsing covers.
[0108] As shown in the drawing, a main coupling part 10'' may
comprise a spring binding the front cover 20 and the back cover 30,
which cover the front and back of a page unit on which various
pieces of information may be printed or on which a memo may be
taken. Here, a subsidiary coupling band 15' may be provided 8 on
the upper or lower ends of the front and back collapsing covers 25
and 35 to couple the front and back collapsing covers to each
other.
[0109] FIG. 21 is a view illustrating holes formed in a subsidiary
coupling part.
[0110] As shown in the drawing, a main coupling part 10'' may
comprise a spring binding the front cover 20 and the back cover 30,
which cover the front and back of a page unit on which various
pieces of information may be printed or on which a memo may be
taken. Here, holes 15a are formed in the subsidiary coupling part
15 which couples the front collapsing cover 25 with the back
collapsing cover 35, so that part of the spring, which is the main
coupling part, is inserted into the holes. In this construction,
when the front and back collapsing covers 25 and 35 overlap the
front and back covers 20 and 30, part of the spring, which is the
main coupling part 10'', is exposed to the outside through the
holes 15a.
[0111] FIGS. 22 and 23 are views illustrating the front and back
collapsing covers fitting inside the corresponding front and back
covers.
[0112] As shown in the drawings, a front collapsing cover 25'' may
fit inside the front cover 20, and a back collapsing cover 35'' may
fit inside the back cover 30. To this end, front and back cover
holding recesses 20a'' and 30a'' are formed, respectively, in the
front and back covers 20 and 30 so that front and back collapsing
covers 25'' and 35'' fit inside the corresponding recesses. The
front and back cover holding recesses 20a'' and 30a'' are thinner
than the corresponding front and back covers 20 and 30. When the
front or back collapsing cover 25'' or 35'' fits inside the
corresponding front or back cover holding recess 20a'' and 30a'',
the total thickness is the same as that of the front or back cover
20 or 30.
[0113] Detachable attaching parts 26a and 26b are installed to the
front collapsing cover 25'' and the front cover holding recess
20a'' so as to maintain the overlapping state of the front
collapsing cover 25'' with the front cover holding recess 20a'',
and detachable attaching parts 36a and 36b are installed to the
back collapsing cover 35'' and the back cover holding recess 30a''
so as to maintain the overlapping state of the back collapsing
cover 35'' with the back cover holding recess 30a''.
[0114] The detachable support unit 60 functions to detachably
support the page unit, and may be embodied in various shapes. For
example, the detachable support unit may comprise a binder which is
mounted to the main coupling part 10 to bind a page unit (not
shown) having several pages. Further, the detachable support unit
may comprise a plurality of vinyl bags which is connected to the
main coupling part 10 to receive paper. Further, the detachable
support unit may comprise a clip which is installed at the upper
end of the front or back cover to detachably support the upper end
of the page unit.
[0115] An eye protective cover capable of supporting multi-purpose
contents according to the second embodiment of the present
invention will be described below.
[0116] FIG. 24 is a perspective view illustrating an eye protective
cover capable of supporting multi-purpose contents according to a
second embodiment of the present invention, in which the eye
protective cover has an angle holding unit of a first embodiment,
FIG. 25 is a view illustrating an angle holding unit of a second
embodiment in the eye protective cover of FIG. 24, and FIG. 26 is a
view illustrating an angle holding unit of a third embodiment in
the eye protective cover of FIG. 24.
[0117] As shown in the drawings, an eye protective cover capable of
supporting multi-purpose contents according to the second
embodiment includes front and back covers 120 and 130 which are
foldably coupled to each other by a main coupling part 110. A front
collapsing cover 125 is connected to the upper portion of the front
cover 120 via a separation line 125a, thus overlapping the front
cover 120. A back collapsing cover 135 is connected to the upper
portion of the back cover 130 via a separation line 135a, thus
overlapping the back cover 130. A subsidiary coupling part 115
couples the front collapsing cover 125 with the back collapsing
cover 135. An angle holding unit is connected between the
subsidiary coupling part 115 and the main coupling part 110, thus
holding an angle between the front cover 20 and the front
collapsing cover 125 and an angle between the back cover 130 and
the back collapsing cover 135.
[0118] Here, as shown in FIG. 3, a detachable support unit 160 is
mounted on any one of the main coupling part 10 and the front and
back covers 20 and 30, and detachably supports a page unit (not
shown) on which various pieces of information are printed or on
which a memo may be taken. The detachable support unit 160 is
similar to that of the first embodiment.
[0119] Since the front cover 120 and the back cover 130 are very
similar to the front cover 20 and the back cover 30 according to
the first embodiment, the detailed description of the front and
back covers will be omitted. Further, as in the first embodiment,
separation lines 125a and 135a may be formed on the upper portions
or the uppermost ends of the front and back covers.
[0120] A subsidiary coupling part 115 couples the front collapsing
cover 125 with the back collapsing cover 135 using separation lines
125b and 135b. Here, the subsidiary coupling part 115 may
completely or partially couple the front collapsing cover 125 with
the back collapsing cover 135.
[0121] Detachable attaching parts 126a and 126b are provided on the
corners of the front cover 120 and the front collapsing cover 125
to maintain the overlapping state of the front collapsing cover 125
with the front cover 120. Further, detachable attaching parts 136a
and 136b are provided on the corners of the back cover 130 and the
back collapsing cover 135 to maintain the overlapping state of the
back collapsing cover 135 with the back cover 130. The detachable
attaching parts 126a and 126b or 136a and 136b comprise Velcro
fasteners so that they are detachably attached to each other, or
comprise a magnet and a steel piece which are detachably attached
to each other using magnetic force, or comprise magnets which are
arranged such that opposite poles face each other, non-magnetic
buttons, etc.
[0122] In order to erect the eye protective cover capable of
supporting multi-purpose contents according to the present
invention, an angle holding unit is installed between the front or
back collapsing cover 125 or 135 and the corresponding front or
back cover 120 or 130 to hold an angle between the front collapsing
cover and the front cover or an angle between the back collapsing
cover and the back cover. The angle holding unit may be embodied in
various shapes, which will be described below.
[0123] As shown in FIG. 24, an angle holding unit 1240 according to
the first embodiment is a band member which is provided between the
main coupling part 110 with the subsidiary coupling part 115 to
couple the main and subsidiary coupling parts to each other.
[0124] As shown in FIG. 25, an angle holding unit 1340 according to
the second embodiment is a member which is foldably coupled to the
lower edge of the main coupling part 110 and has a plurality of
fitting grooves 1340a such that an edge of the subsidiary coupling
part 115 is fitted into an associated fitting groove. The fitting
grooves 1340a are formed in the angle holding unit 1340 so that an
edge of the subsidiary coupling part 115 coupling the front and
back collapsing covers 125 and 135 to each other is fitted into an
associated fitting groove. According to the position of the fitting
groove into which the edge of the subsidiary coupling part is
fitted, the erection angle of the front and back covers 120 and 130
is changed. In the drawing, the angle holding unit 1340 is
positioned between the main coupling part 110 and the subsidiary
coupling part 115. However, when the angle holding unit is not in
use, the angle holding unit may overlap a surface of the main
coupling part 110.
[0125] As shown in FIG. 26, an angle holding unit 1440 according to
the third embodiment includes a plurality of first detachable
attaching parts 1441, a band member 1442, and a second detachable
attaching part 1443. The first detachable attaching parts are
mounted on the subsidiary coupling part 115 at predetermined
intervals. The band member is connected to the main coupling part
110 in such a way as to pass through a lower portion of the
subsidiary coupling part 115. The second detachable attaching part
1443 is installed at an end of the band member 1442 to be attached
to an associated first detachable attaching part 1441.
[0126] As the second detachable attaching part 1443 is attached to
a first detachable attaching part 1441 provided at a specific
position, the band member 1442 changes an interval between the
front or back cover 120 or 130 and the front or back collapsing
cover 125 and 135, and the erection angle between the front and
back covers 120 and 130 can be changed.
[0127] Here, the first and second detachable attaching parts 1441
and 1443 may comprise Velcro fasteners so that they are detachably
attached to each other, or comprise a magnet and a steel piece
which are detachably attached to each other using magnetic force,
or comprise magnets which are arranged such that opposite poles
face each other. According to this embodiment, the first and second
detachable attaching parts 1441 and 1443 comprise a steel piece
mounted on the band member 1442 and button-shaped magnets mounted
on the subsidiary coupling part 115. Further, the band member may
be made of various materials, for example, cloth, plastics, polymer
resin, leather, paper, etc.
[0128] In order to prevent the angle holding unit 1440 from being
exposed outside, a cap may be provided on the subsidiary coupling
part 115 to cover the angle holding unit 1440.
[0129] Further, in this embodiment, the first and second detachable
attaching parts 1441 and 1443 of the angle holding unit 1440 are
provided on the subsidiary coupling part 115. However, the first
and second detachable attaching parts may be installed at the main
coupling part 110, and the band member 1442 may be coupled to the
subsidiary coupling part 115.
[0130] Although the preferred embodiments of the present invention
have been disclosed for illustrative purposes, those skilled in the
art will appreciate that various modifications, additions and
substitutions are possible, without departing from the scope and
spirit of the invention as disclosed in the accompanying
claims.
* * * * *